20709809 is an odd 8-digits prime number following 20709808
and preceding 20709810 . In scientific notation, it is written as 2.0709809 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 20709808 positive integers (up to 20709809) that are relatively prime to 20709809.
20709809 has 2 divisors, whose sum is 20709810
The reverse of 20709809 is 90890702
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million seven hundred nine thousand eight hundred nine
Scientific notation
2.0709809 × 10^7
Engineering notation
2.0709809 × 10^6
Prime Factorization
20709809
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20709809
Product of the distinct prime numbers
The prime factorization of 20709809 is 20709809.
Since it has a total of 1 prime factors.
3 , 8 , 19 , 41 , 728 , 79 , 2245 , 919 , 28538 , 42270 , 421785 , 817420 , 2954590 , 5395598 , 33586628 , 3729320 , 773528811 , 335665679 , 8832860115 , 7033688204
n×2
41419618
n×3
62129427
n×4
82839236
n×5
103549045
n÷2
10354904.5
n÷3
6903269.6666667
n÷3
5177452.25
n÷5
4141961.8
n2
428896188816481
n3
8.8823581512173E+21
n4
1.839519407813E+29
n5
3.8096095587601E+36
2 √n
4550.8031159346
3 √n
274.61570122834
4 √n
67.459640644867
5 √n
29.055959313708
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20709810
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10354905
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4550.8032258053
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999034274
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20709809 can be divided by 2 positive divisors.
The sum of these divisors (counting 20709809) is 20709810, the average is 10354905.
Base
System
Value
2
Binary
1001111000000000110110001
3
Ternary
1102222011111222
4
Quaternary
1033000012301
5
Quinary
20300203214
6
Senary
2015514425
8
Octal
117000661
10
Decimal
20709809
12
Duodecimal
6b28a15
16
Hexadecimal
13c01b1
20
Vigesimal
698ea9
36
Base36
cbvsh
md5
0f21abf528f5015daa07bc411187d2f2
sha1
a2425a27c00b384fb8666948cab5f7761db1da48
sha256
0e3fa39480f77fdf7185991799fbb1657132ca9bf0ecb69c98279fb2a166e88c
sha512
43da5f1ec2803511152e0e02685edbdadd86138a431205e57b271033044314997ad134217cdf42a9c0e34da7b3a2ab9d791b3a32a1041712bccaa627bce70744
ripemd-160
b75fcdcd5fd448e52103fd1c737dcde823b73007
Diameter
41419618
Circumference
130123567.6233
Area
1.3474171159385E+15
Volume
3.7206334819223E+22
Surface area
5.3896684637541E+15
Circumference
130123567.6233
Perimeter
82839236
Area
428896188816481
Diagonal
29288092.761956
Surface area
2573377132898886
Volume
8.8823581512173E+21
Space diagonal
35870441.403047
Perimeter
62129427
Area
1.857174975507E+14
Altitude
17935220.701524
Surface area
1.857174975507E+14
Volume
1.0467959469422E+21
Height
9762697.5873188